A business model is like an ultrasound for businesses: it provides – from the outside – detailed insight into six vital elements of a business which explain their functioning (Chapter 3). Each peer-to-peer accommodation network is slightly different and requires an independent business model analysis. Here we analyze the business model of Airbnb because it is the international market leader in commercial peer-to-peer accommodation trading and a model other platforms aspire to. We focus on value proposition, creation, communication, and transfer. The other two elements (value capture and dissemination) are discussed in Chapter 5.